NEW YORK, Jan 16 (Reuters) - The former executive director of the U.N. oil-for-food program, Benon Sevan, has been charged with bribery and conspiracy to commit wire fraud in connection with the program, a federal prosecutor said on Tuesday. Michael Garcia, U.S. Attorney for the Southern District of New York, said in a statement that Sevan allegedly received about $160,000 from Ephraim Nadler on behalf of the Iraqi government. Nadler has also been charged.